Table 1 The top 10 productive countries/regions
Rank | Country | Documents | Citations | Total link strength |
|---|---|---|---|---|
1 | USA | 1335 | 40,909 | 368 |
2 | China | 468 | 5656 | 95 |
3 | Japan | 189 | 3051 | 39 |
4 | Germany | 174 | 4303 | 198 |
5 | England | 149 | 6858 | 228 |
6 | Canada | 143 | 4058 | 146 |
7 | Italy | 129 | 4123 | 172 |
8 | South Korea | 101 | 1825 | 47 |
9 | Netherlands | 92 | 3648 | 121 |
10 | Australia | 92 | 3319 | 110 |